$348: On Continental, Delta, Northwest, US Air, United, American, Canadian Air, Air Canada. Purchase non-transferable, non-refundable tickets 14 days in advance. Same travel days and times and same departure/return requirements as the $253 fare.

$603: On Continental, Delta, Northwest, Air Canada, US Air, United, American. Purchase non-transferable, non-refundable tickets seven days in advance. Same departure/return requirements as the $253 fare.